count

/*
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 * and open the template in the editor.
 */
package image2d;

import java.awt.image.BufferedImage;
import java.util.HashMap;
import java.util.Iterator;
/**
 *
 * @author pratchaya
 */
public class Interval {

    public static void counter(BufferedImage _image) {
        BufferedImage output = ImageProcessor.copyImg(_image);
        int[][] p = Get_Pixels.getPixels(_image);
        HashMap<Integer, Integer> r = new HashMap<Integer, Integer>(); // store red

     for (int i = 0; i < _image.getWidth(); i++) {
            for (int j = 0; j < _image.getHeight(); j++) {

                // store count value into hashmap
                // RGB.red, RGB.green, RGB.blue is use to shift color to get RGB
                if (r.get(RGB.red(p, j, j)) == null) {
                    r.put(RGB.red(p, j, j), 1);
                } else {
                    r.put(RGB.red(p, j, j), r.get(RGB.red(p, j, j)) + 1);
                }


      } // end j
        } //end i


        Iterator<Integer> printR = r.keySet().iterator();
        while (printR.hasNext()) {
            int key = printR.next();
            int value = r.get(key);
            System.out.println("Key : " + key + "   Value: " + value);
        }

    }
}